Fill out the chart. Equivalent Algebraic expressions :(

NoMathYesFun said:
View attachment 25097

I don't know how to to do this. Plz help :(
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Simplify EACH expression in each column. Like Row E in column A is:

9x-7y+3x-5y = 9x - 3x -7y -5y = 6x - 12y

Now check column B for a match.

Please show us what you have tried and exactly where you are stuck.

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Please share your work/thoughts about this problem.
 
Here is how I explain these type problems.

In earlier grades you might have been given the two problems 7+5 and 8+3 to do.

Now they give this as one problem. To show that you are to add just the 7 and 5 they put an x next to them and to show to just add the 8 and 3 they put a y next to them as in 7x + 8y + 5x + 3y (note that the ordering of the four terms do not matter). Now in the answer you code it the same way. Since you added the 7 and 5 because they have an x next to them you put an x next to the sum. That is the simplification of 7x + 8y + 5x + 3y is 12x + 11y.

Is that clear??!!
 
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